4 in 1 Multi-Purpose Jump Starters -- This is not just a car jump starting for your car emergency needs, an air compressor for pumping, or a charger device for charging and a 12V DC output for powering your other car accessories. Include A FREE Car Safety Hammer ($4.99). Powerful and compact, perfect for your needs on the go! Power Invert Output -- Built-in 5V 2.1A USB port as a battery pack (10000mah) for your electronic devices, such as phones, tablets, cameras, kindles and etc. Come with AC power adapter for charging at home, and the 12V power outlet (cigarette lighter), so you can power up car electronics if needed; great for use in camping, outdoors, home, emergencies, travel, etc. NOTE: Jumper Starter should be charged every 30 days when not in use. Strong Car Jump Starter -- With 1000 Amps, this portable car starter is powerful enough to quickly and safely start vehicles (up to 3.0L gas engines / 3.0L diesel engines) such as cars, motorcycles, RVs, tractors, etc. Works easily even in extreme temperatures at -4F to 149F. Recommended to put this Zun Dian car jumper in your car when you drive out for a trip! Safety Uses Jumper -- Heavy-duty metal clamps, reverse polarity LED alerts, and built-in work light fully guarantees your safety use but please also refer to the manual before using. DO NOT start the car engine while charging the jump pack. Portable Tire Inflator Jump Starter Air Compressor -- ZunDian battery jumper built-in air compressor (35 L/Min, 260 PSI) with a digital LCD that reads the current tire pressure, and can set the pressure you want to inflate the tire, taking only 5 mins fully pump. Also supports 3 adapters valves for your bikes, cars, balls, pool toys, and other Inflatables. But please stop every 8 minutes to cool down the inflator and avoid over-pressure. NOTE: If you missing the charger adapter, you can search B0CFVFTKQX to buy or contact us directly.